24278 version 1
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Demonstrate knowledge of engine performance testing using a
dynamometer
Level
4
Credits
2
Purpose
This theory-based unit standard is for people in the automotive repair
industry. People credited with this unit standard are able to demonstrate
knowledge of engine performance testing, and testing an engine using a
chassis dynamometer and an engine dynamometer.
Subfield
Motor Industry
Domain
Engines
Status
Registered
Status date
25 January 2008
Date version published
25 January 2008
Planned review date
31 December 2012
Entry information
Open.
Replacement information
This unit standard, unit standard 24279, and unit
standard 24280 replaced unit standard 967, unit
standard 15448, and unit standard 15449.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
Accreditation and Moderation Action Plan (AMAP) reference
0014
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Legislation relevant to this unit standard includes but is not limited to – Health and
Safety in Employment Act 1992; Land Transport Rule: Vehicle Repair 1998, Rule
34001.
2
Land Transport Rules are produced for the Minister of Transport by Land Transport
New Zealand. These rules are available online at
http://www.landtransport.govt.nz/rules/.
 New Zealand Qualifications Authority 2016
24278 version 1
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Definition
Service information may include but is not limited to – technical information of a
vehicle, machine, or product detailing operation; installation and servicing
procedures; manufacturer instructions and specifications; technical terms and
descriptions; and detailed illustrations. This can be accessed in hard copy or
electronic format and is normally sourced from the manufacturer.
Elements and performance criteria
Element 1
Demonstrate knowledge of engine performance testing.
Range
two stroke, four stroke.
Performance criteria
1.1
Engine efficiency and performance ratings are described in accordance with
service information.
Range
1.2
includes but is not limited to –
in relation to two stroke engines – volumetric efficiency,
mechanical efficiency, thermal efficiency, scavenging, power
output, engine torque;
in relation to four stroke engines – volumetric efficiency,
mechanical efficiency, thermal efficiency, power output, engine
torque.
Engine duty cycle characteristics are identified in accordance with engine or
vehicle manufacturer specifications.
Range
automotive, industrial, marine.
Element 2
Demonstrate knowledge of testing an engine using a chassis dynamometer and an engine
dynamometer.
Range
petrol or diesel.
Performance criteria
2.1
The uses of an engine dynamometer and a chassis dynamometer are described
in accordance with dynamometer instructions.
Range
engine testing, running-in, engine performance assessment,
transmission losses.
 New Zealand Qualifications Authority 2016
24278 version 1
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2.2
Procedures for preparing the engine, and vehicle or machine for testing are
described in accordance with service information.
Range
2.3
basic mechanical condition, fluid levels, sufficient fuel, engine
cooling and forced air requirements, instrument and gauge hookup, scan tools.
Procedures for operating the engine and vehicle on a chassis dynamometer and
an engine dynamometer, and the recording of results are described in
accordance with service information and dynamometer instructions.
Range
acceleration tests, power output tests, engine torque tests,
exhaust emission, set test programmes and test cycles.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact the NZ Motor Industry Training Organisation (Incorporated)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016